--Why does the river smell terrible?
--Because large quantities of water__________.
|
A．have polluted |
B．is being polluted |
C．has been polluted |
D．have been polluted |
_______that they lost the game, tears came down Kate’s face.
|
A．On hearing the news |
B．When heard the news |
|
C．The moment she heard the news |
D．While hearing the news |
Children’s brains can’t develop properly_______ they lack protein(蛋白质).
|
A．when |
B．since |
C．because |
D．unless |
With all his attention ____ on the computer game, the boy even didn't notice his mother came in.
|
A．was fixing |
B．was fixed |
C．fixing |
D．fixed |
Though ______ of danger, sightseers have been flocking to the site where the world’s biggest terrorist Bin Laden lived.
|
A．warned |
B．warning |
C．being warned |
D．having warned |
----- You should have finished your homework, I gave your much time.
----- Sorry, but I_____ it.
|
A．had forgotten |
B．forgot |
C．was forgotten |
D．forget |
